Explanation:

 The Chauri Chaura incident occurred at Chauri Chaura in the Gorakhpur district of the United Province, British India on 5 February 1922, when a large group of protesters, participating in the Non-cooperation movement, clashed with police, who opened fire. In retaliation the demonstrators attacked and set fire to a police station, killing all of its occupants. The incident led to the deaths of three civilians and 22 or 23 policemen.Mahatma Gandhi who was strictly against violence halted the Non-cooperation Movement on the national level as a direct result of this incident.